St. Francis College senior point guard Dre Calloway did what seniors do sometimes.

And the results weren’t good for Wagner College.

The Harlem product spoiled a potentially big night for the Seahawks, banking home a twisting driving layup with 2.8 seconds remaining to cap a wild 76-75 Terrier victory that included 19 lead changes and three technical fouls called on Wagner.

“A heckuva shot,” Seahawk coach Bashir Mason said after Calloway’s score dropped Wagner to 15-11 and 9-6 in Northeast Conference play when a victory would have elevated Mason’s team into a third-place NEC tie with Long Island University.

“It was an up-and-under around two guys,” said Mason, who was whistled for the first team technical three minutes into the first half while Wagner was falling behind by as many as 10 points to the Terriers (11-15, 7-8). “They crushed us on the boards and out-scored us in the paint, but I was still confident until Calloway made the shot.”

Jonathon Williams, who was also assessed a second-half technical, led Wagner with 16 points.

And Kenny Ortiz and Marcus Burton added 12 points each.

But Wagner was out-rebounded 41 to 34 and the Seahawks misfired at a 1-for-16 clip from three-point range over the Terrier zone.

The defeat also took some of the wind out of Sunday’s ESPNU match-up versus reigning champion Long Island University, which lost 83-71 at Mount St. Mary’s to fall to 15-12 and 10-5 in conference play.

“There’s nothing we can do about that,” said junior guard Latif Rivers, who picked up the Seahawks’ third second-half technical. “We’ve been trying to keep our mind on one game at a time, and keep all the rest of that stuff out of the locker room. But for a long time we felt in this game like things were going our way.”

FULL-COURT PRESSURE

The Seahawks trailed 60-50 with 11-plus minutes left when Mason went to full-court pressure.

On the next possession freshman Dwaun Anderson — who scored nine points and grabbed a team-high seven rebounds in 18 minutes of playing time — converted a three-point play.

And he scored again when SFNY turned the ball over in the inbound attempt.

Wagner trapped Terrier point guard Brent Jones on the next possession, forcing a walk call.

And when Burton missed a three, Mario Moody scored on a put-back to cut the SFNY edge to 60-57.

It was game-on from that point, and Wagner finally tied it at 66-66 on a Williams free throw with 5:22 remaining.

“That was just the kind of game it was,” said Mason. “It was really well played by both teams. They really competed, and I knew we’d make a push.”

The score was tied three more times — 70-70, 71-71, and 73-73.

Former McKee/Staten Island Tech star Lowell Ulmer (7 points, 14 minutes) gave St. Francis a 74-73 lead on a free-throw with 1:53 to go.

And Wagner saw a chance to ice it snubbed with 22 seconds left when Ortiz was whistled for an offensive foul on a drive to the basket.

“It was a bang, bang play,” Mason said afterward of his team’s final possession. “I thought Kenny made the right play, it just went the other way on us.”

The call set up the final St. Francis offensive moment.

Terrier coach Glenn Braica called a timeout with 13.3 seconds left and his team trailing 75-74 to run a play for bruising SFNY forward Jalen Cannon (13 points, 7 rebounds).

“He didn’t run what I wanted,” said Braica. “The play broke down.”

The St. Francis coach considered calling his final timeout when Calloway wound up at the top of the key with the clock ticking.

“I decided Dre is pretty good the ball in his hands,” the coach said. “He improvised.”

Calloway sliced hard from the top of the key into the lane, guarded by Ortiz and with Rivers and Josh Thompson collapsing on him.

ATTACKED BASKET

“I just attacked,” said the one-time Rice High School guard, who lost most of last season to shoulder surgery. “It looked like there was a clear path, and I just took the opening.”

Wagner’s Rivers got off a desperation half-court attempt in response that had no chance.

Of the technical fouls, the most called on a Wagner team in one half in memory, Mason had this measured response.

“I pride myself on being under control,” said the first-year head coach. “I didn’t think I said anything or tried to show anyone up. Basically, I don’t think any of the calls were warranted.”

NOTES: Sunday’s game vs. LIU is an 8 p.m. tip-off ... The SFNY victory gave the Terriers a season sweep against Wagner ... Forward Travis Nichols, who came off the bench to score 20 against Wagner in the January 12, 71-52 St. Francis win, scored 16 in 16 minutes Thursday.